.about_main{padding-bottom:20px;background:url(../image/about_bg.jpg) repeat-y;background-position:center top;background-size:100% 700px}
.about_header_img{width:1150px;height:227px;background:url(../image/about_tit_bg.jpg) no-repeat}
.about_nav{background:#b82920;height:30px;line-height:30px;text-align:center;font-size:14px;color:#fff}
.about_nav a{color:#fff}
.about_nav a.active,.about_nav a:hover{color:#000}
.about_nav span{padding:0 15px}
.about_content{background:#fff;padding:40px}
.about_content .title_img{text-align:center}
.about_content .title{text-align:center;font-size:22px;padding:15px 0;margin-bottom:20px}
.about_content .content{font-size:14px;line-height:26px}
